| 雷暴冲击风作用下球壳型屋面模型风压特性试验研究 |
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| 引用本文： | 陈勇,崔碧琪,余世策,楼文娟,孙炳楠.雷暴冲击风作用下球壳型屋面模型风压特性试验研究[J].建筑结构学报,2011,32(8):26-33. |
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| 作者姓名： | 陈勇 崔碧琪 余世策 楼文娟 孙炳楠 |
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| 作者单位： | 1.浙江大学 结构工程研究所， 浙江杭州 310058； 2.浙江大学 宁波理工学院, 浙江宁波 315100 |
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| 基金项目： | 国家自然科学基金项目(50708096,20908208); 国家科技支撑计划项目(2006BAJ01B07-04); 浙江省自然科学基金项目(Y1110143) |
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| 摘 要： | 以球壳型大跨度屋面为研究对象,进行雷暴冲击风作用下的刚性模型风洞试验。按照相似准则制作了不同类型球壳型屋面模型,利用射流装置、粗糙元等模拟了雷暴冲击风流场,研究了失跨比、高跨比及同一矢跨比下的跨度等结构参数以及屋面所处流场位置的变化对冲击风作用下屋面的风压极值位置及其数值大小、气流分离点位置等的影响。试验结果与CFD数...
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| 关 键 词： | 球壳型屋面 雷暴冲击风 风洞试验 风压特性 |
Experimental investigation of spherical roof subjected to thunderstorm downbursts |
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| CHEN Yong,CUI Biqi,YU Shice,LOU Wenjuan,SUN Bingnan.Experimental investigation of spherical roof subjected to thunderstorm downbursts[J].Journal of Building Structures,2011,32(8):26-33. |
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| Authors: | CHEN Yong CUI Biqi YU Shice LOU Wenjuan SUN Bingnan |
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| Affiliation: | 1.Institute of Structure Engineering, Zhejiang University, Hangzhou 310058, China;;
2.Ningbo College of Technology, Zhejiang University, Ningbo 315100, China |
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| Abstract: | An experimental on the wind pressure distribution of a spherical-type long span roof under thunderstorm downbursts was studied.The scaled models were designed and manufactured according to the similarity criteria.The wind field of downbursts was simulated by utilizing an impinging jet to generate a flow blowing to a flat plate that has numerous roughness elements on its surface.The sensitivity studies of structural parameters such as height-to-span ratio,rise-to-span ratio,roof span,and the location of the ... |
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| Keywords: | spherical roof thunderstorm downburst wind tunnel test wind pressure characteristics |
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